Okay, this is totally creepy. The walks in front of the building where I work are aligned in the shape of a pentagram. And guess whose symbol is on the cornerstone of the building? Yep, the Masonic square and compass.

The pentagram is a natural occurring symbol. It is not hard to imagine why the paths are in the shape of a pentagon. Anywhere you have five nodes connected in every way you have a pentagram.
And about the Masonic square and compass, in the late medieval every mason had to be member of the freemasons to get a job. You don't think it is a conspiracy when you see all cab drivers are connected the same organization?